Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    21/04/2026, 09:40

General

  • Target
    2026-04-21_08c79a6edcc579b36482c585592c8ea4_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 297KB
  • Sample260421-lm6d2ae121
  • SHA256 df26409de2440fab406abcc07b22bbb96d6ced953459e901259b5dc8a3724cef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • blihanstealer

Mutex
  • pomdfghrt

Attributes
  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

Signatures

  • Family: BlihanStealer

    Blihan is a stealer written in C++.

  • Custom signature
    Detects executables built or packed with MPress PE compressor 5 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-21_08c79a6edcc579b36482c585592c8ea4_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-21_08c79a6edcc579b36482c585592c8ea4_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4148
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:4644
  • C:\Windows\microsofthelp.exe
    C:\Windows\microsofthelp.exe
    1⤵
    • Executes dropped EXE
    PID:3668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        microsofthelp.exe

        • Path C:\Windows\microsofthelp.exe
        • Size 297KB
        • SHA256 fbeb96848e2733b11e3ebbd01d6f7c02ef7b4bb09f4b16238e00565e7b1a9dbe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3668-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4148-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4148-5-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4644-8-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4644-9-0x0000000002A30000-0x0000000002A93000-memory.dmp